[INFO] fetching crate minigrep5 0.1.2...
[INFO] building minigrep5-0.1.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate minigrep5 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate minigrep5 0.1.2
[INFO] finished tweaking crates.io crate minigrep5 0.1.2
[INFO] tweaked toml for crates.io crate minigrep5 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate minigrep5 0.1.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate minigrep5 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cff7cfa29a4c7e68f048fc05e2ecc5539745261b35d666b4d404fc7492dd1d56
[INFO] running `Command { std: "docker" "start" "-a" "cff7cfa29a4c7e68f048fc05e2ecc5539745261b35d666b4d404fc7492dd1d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cff7cfa29a4c7e68f048fc05e2ecc5539745261b35d666b4d404fc7492dd1d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cff7cfa29a4c7e68f048fc05e2ecc5539745261b35d666b4d404fc7492dd1d56", kill_on_drop: false }`
[INFO] [stdout] cff7cfa29a4c7e68f048fc05e2ecc5539745261b35d666b4d404fc7492dd1d56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3aab2a2fbb14244d683d1a6e74648cba6194e66ca638dbdfe836a503b8377467
[INFO] running `Command { std: "docker" "start" "-a" "3aab2a2fbb14244d683d1a6e74648cba6194e66ca638dbdfe836a503b8377467", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep5 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env::Args`
[INFO] [stdout]  --> src/new/lib2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env::Args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]  --> src/new/sample.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let buffer: &mut [i32] = todo!();
[INFO] [stdout]   |                              ------- any code following this expression is unreachable
[INFO] [stdout] 3 |     let coefficients: [i64; 12];
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lol/lib.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lol/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]  --> src/new/sample.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let buffer: &mut [i32] = todo!();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/new/lib2.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let config = Config::build(env::args()).unwrap_or_else(|err| {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]    --> src/lib.rs:105:18
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn some_func(arr: Vec<i32>) -> i32 {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeStruct` is never constructed
[INFO] [stdout]   --> src/new/lib2.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct SomeStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some` is never used
[INFO] [stdout]   --> src/new/lib2.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn some() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/new/sample.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> src/main.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn some_func(arr: &Vec<i32>) -> i32 {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let some = minigrep::lol::lib::PrimaryColor::Red;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_some`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old` is never used
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn old() {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old2` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn old2() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "3aab2a2fbb14244d683d1a6e74648cba6194e66ca638dbdfe836a503b8377467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aab2a2fbb14244d683d1a6e74648cba6194e66ca638dbdfe836a503b8377467", kill_on_drop: false }`
[INFO] [stdout] 3aab2a2fbb14244d683d1a6e74648cba6194e66ca638dbdfe836a503b8377467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86bee78ca47892c11b486a654c21c9570c8c3defca443307f16864db75261121
[INFO] running `Command { std: "docker" "start" "-a" "86bee78ca47892c11b486a654c21c9570c8c3defca443307f16864db75261121", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::env::Args`
[INFO] [stdout]  --> src/new/lib2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env::Args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]  --> src/new/sample.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let buffer: &mut [i32] = todo!();
[INFO] [stdout]   |                              ------- any code following this expression is unreachable
[INFO] [stdout] 3 |     let coefficients: [i64; 12];
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lol/lib.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lol/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]  --> src/new/sample.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let buffer: &mut [i32] = todo!();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling minigrep5 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/new/lib2.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let config = Config::build(env::args()).unwrap_or_else(|err| {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]    --> src/lib.rs:105:18
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn some_func(arr: Vec<i32>) -> i32 {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeStruct` is never constructed
[INFO] [stdout]   --> src/new/lib2.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct SomeStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some` is never used
[INFO] [stdout]   --> src/new/lib2.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn some() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/new/sample.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::Args`
[INFO] [stdout]  --> src/new/lib2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env::Args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]  --> src/new/sample.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let buffer: &mut [i32] = todo!();
[INFO] [stdout]   |                              ------- any code following this expression is unreachable
[INFO] [stdout] 3 |     let coefficients: [i64; 12];
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> src/main.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn some_func(arr: &Vec<i32>) -> i32 {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let some = minigrep::lol::lib::PrimaryColor::Red;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_some`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/new/lib2.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let config = Config::build(env::args()).unwrap_or_else(|err| {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]  --> src/new/sample.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let buffer: &mut [i32] = todo!();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lol/lib.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lol/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]    --> src/lib.rs:105:18
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn some_func(arr: Vec<i32>) -> i32 {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old` is never used
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn old() {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old2` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn old2() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeStruct` is never constructed
[INFO] [stdout]   --> src/new/lib2.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct SomeStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some` is never used
[INFO] [stdout]   --> src/new/lib2.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn some() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/new/sample.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "86bee78ca47892c11b486a654c21c9570c8c3defca443307f16864db75261121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86bee78ca47892c11b486a654c21c9570c8c3defca443307f16864db75261121", kill_on_drop: false }`
[INFO] [stdout] 86bee78ca47892c11b486a654c21c9570c8c3defca443307f16864db75261121